XCL231B0K1H2 Evaluation Board User Manual
Transcript of XCL231B0K1H2 Evaluation Board User Manual
36V, 600mA Inductor Built-in Step-down “micro DC/DC” Converter
XCL231B0K1H2 Evaluation Board User Manual
CAUTIONENGINEERING EVALUATION PURPOSES ONLY
This evaluation board is made for the purpose of the product evaluation.It is strictly prohibited to use this evaluation board for any other purpose.
Torex Semiconductor does not guarantee that all samples will perform in exactly the same way and we recommend that you always consult our product data sheets for the minimum and maximum specifications.
It is also important that you evaluate all our products carefully before mass production and in case of any doubt, please contact your Torex
www.torex.co.jp
36V, 600mA Inductor Built-in Step-down “micro DC/DC” Converter
Evaluation Board Picture
Evaluation Board SPEC
XCL230/XCL231 Series Features
・ Input Voltage Range ・・・・・・・・・・・・・・・・・・ 3.0V ~ 36.0V
・ Output Voltage Range ・・・・・・・・・・・・・・・・・・ 1.0V ~ 5.0V
・ Max Output Current ・・・・・・・・・・・・・・・・・・ 600mA max.
・ Switching frequency ・・・・・・・・・・・・・・・・・・ 1.2MHz
・ Max Duty Cycle ・・・・・・・・・・・・・・・・・・ 100%
・ Small Solution Size
・ Low EMI Noise
・ Built-in Inductor
・ Sequence Control is possible. (Power Good and Soft Start functions)
XCL231B0K1H2 Evaluation Board
1 / 11XCL231B0K1H-5V-EVB-01
Ta=25℃
CONDITON. MIN. TYP. MAX. UNIT
Vin Input Voltage Range - 3.0 - 36.0 V
Vout Setting Output Voltage - - 5.0 - V
Iout Output Current - 0.0 - 600.0 mA
fosc Switching frequency - - 1.2 - MHz
www.torex.co.jp
36V, 600mA Inductor Built-in Step-down “micro DC/DC” Converter
Quick Start Procedure
XCL231B0K1H2 Evaluation Board
2 / 11XCL231B0K1H-5V-EVB-01
A
Vout
Rout
Multimeter
VMultimeter
Iout
Vin
V
AMultimeter
Multimeter
DC Power Supply
Iin
www.torex.co.jp
36V, 600mA Inductor Built-in Step-down “micro DC/DC” Converter
Schematic
BOM
Required Circuit Component
Additional Demo Board Circuit Components
3.3V 510kΩ 150kΩ 22pF
5.0V 680kΩ 120kΩ 15pF
TDK
Vout Setting TableVout Setting RFB1 RFB2 CFB
-
Item Value Description Size [mm] Part Number Manufacture
RPG 100kΩ Resistor - -
1005 -
RFB2 120kΩ Resistor 1005 -
CBLK 10uF Ceramic cap., 50V/10uF 3225 CGA6P3X7S1H106K
Item Value Description Size [mm] Part Number
TDK
CIN1 4.7uF Ceramic cap., 50V 2012 C2012X7R1H475K125AC TDK
CIN3 0.1uF Ceramic cap., 50V
CL1 10uF Ceramic cap., 10V 2012 C2012X7R1A106K125AC
- -
Manufacture
XCL231B0K1H2 Evaluation Board
IC
1608 C1608X7R1H104K080AE
-
RSS Jumper Resistor - - -
CSS - -
- Step-Down micro DC/DC Converters DFN3030-10B XCL231B0K1H2 TOREX
TDK
TDK
-
3 / 11XCL231B0K1H-5V-EVB-01
CIN2 4.7uF Ceramic cap., 50V 2012 C2012X7R1H475K125AC TDK
-
-
RFB1 680kΩ Resistor 1005 -
CL2 10uF Ceramic cap., 10V 2012 C2012X7R1A106K125AC
CFB 15pF Ceramic cap. , 50V, CH
CIN1-3
VIN
L1
GND
L2
CL1
VOUT
GND
IC
EN/SS
EN/SS
CBLK
LX PG
CL2
FB
PG
VPULL
RPG
CFB
RFB1
RFB2
VIN
CSS
RSS
www.torex.co.jp
36V, 600mA Inductor Built-in Step-down “micro DC/DC” Converter
PCB Layout
Layer 1 Layer 2
Layer 3 Layer 4
XCL231B0K1H-5V-EVB-01 4 / 11
XCL231B0K1H2 Evaluation Board
www.torex.co.jp
36V, 600mA Inductor Built-in Step-down “micro DC/DC” Converter
Test Result
(1) Output Voltage vs Output Current @Ta=25℃
(2) Efficiency vs Output Current Ta=25℃
(3) Ripple Voltage vs Output Current Ta=25℃
XCL231B0K1H2 Evaluation Board
5 / 11XCL231B0K1H-5V-EVB-01
0
20
40
60
80
100
0.1 1 10 100 1000
Eff
icie
ncy : E
FF
I (%
)
Output Current : IOUT (mA)
Vin=8V
Vin=12V
Vin=24V
4.8
4.9
5.0
5.1
5.2
0.1 1 10 100 1000
Outp
ut V
oltage : V
OU
T (
V)
Output Current : IOUT (mA)
Vin=8V
Vin=12V
Vin=24V
0
50
100
150
200
0.1 1 10 100 1000
Rip
ple
Voltage : V
r (m
V)
Output Current : IOUT (mA)
Vin=8V
Vin=12V
Vin=24V
www.torex.co.jp
36V, 600mA Inductor Built-in Step-down “micro DC/DC” Converter
Test Result
(4) Output Voltage Waveform @ Ta=25℃
(4-1) Vin = 12V, Iout = 1mA (4-2) Vin = 12V, Iout = 300mA
(4-3) Vin = 24V, Iout = 1mA (4-4) Vin = 24V, Iout = 300mA
XCL231B0K1H2 Evaluation Board
6 / 11XCL231B0K1H-5V-EVB-01
100us/div
Lx (5V/div)
Vout (10mV/div)
400ns/div
Lx (5V/div)
Vout (10mV/div)
400ns/div Lx (5V/div)
Vout (10mV/div)
100us/div Lx (5V/div)
Vout (10mV/div)
www.torex.co.jp
36V, 600mA Inductor Built-in Step-down “micro DC/DC” Converter
Test Result
(5) Start-up Waveform @ Ta=25℃
(5-1) Vin = 12V, Iout = 10mA (5-2) Vin = 12V, Iout = 300mA
(5-3) Vin = 24V, Iout = 10mA (5-4) Vin = 24V, Iout = 300mA
XCL231B0K1H2 Evaluation Board
XCL231B0K1H-5V-EVB-01 7 / 11
1ms/div
Vout (2V/div)
CE(5V/div)
Input Current(100mA/div)
1ms/div
Vout (2V/div)
CE(5V/div)
Input Current(100mA/div)
1ms/div
Vout (2V/div)
CE(5V/div)
Input Current(100mA/div)
1ms/div
Vout (2V/div)
CE(5V/div)
Input Current(100mA/div)
www.torex.co.jp
36V, 600mA Inductor Built-in Step-down “micro DC/DC” Converter
Test Result
(6) Load Transient Waveform @ Ta=25℃
(6-1) Vin = 12V, Iout = 1mA ⇔ 200mA
(6-2) Vin = 24V, Iout = 1mA ⇔ 200mA
XCL231B0K1H-5V-EVB-01 8 / 11
XCL231B0K1H2 Evaluation Board
400us/div
Vout (500mV/div)
Output Current (100mA/div)
400us/div
Vout (500mV/div)
Output Current (100mA/div)
www.torex.co.jp
36V, 600mA Inductor Built-in Step-down “micro DC/DC” Converter
Test Result
(7) Radiation EMI : CISPR-32/VCCI 10m PeakCondition
IC : XCL230B0K1H2Vin : 12VVout : 5VIout : 300mA
XCL231B0K1H2 Evaluation Board
XCL231B0K1H-5V-EVB-01 9 / 11
www.torex.co.jp
36V, 600mA Inductor Built-in Step-down “micro DC/DC” Converter
【Appendix】 How to calculate DC/DC Converter or DC/DC Controller.
It can be calculated by the following "WEB DC/DC Simulation".
日本語 :English :简体中文 :
10 / 11
https://www.torex.co.jp/technical-support/dcdc-simulation/https://www.torexsemi.com/technical-support/dcdc-simulation/https://www.torex.com.cn/technical-support/dcdc-simulation/
XCL231B0K1H-5V-EVB-01
XCL231B0K1H2 Evaluation Board
www.torex.co.jp
36V, 600mA Inductor Built-in Step-down “micro DC/DC” Converter
【Appendix】 How to reduce the spike noise caused by measurement (Probing method with oscilloscope)
* Condition : XC9236, Vin=3.6V/Vout=1.8V/100mA
English : https://www.torexsemi.com/technical-support/tips/reduction-spike-noise/日本語 : https://www.torex.co.jp/technical-support/tips/reduction-spike-noise/
XCL231B0K1H-5V-EVB-01 11 / 11
XCL231B0K1H2 Evaluation Board
1us/div 1us/div
Vout (10mV/div) Vout (10mV/div)
Vout
GND
GND
Vout
Probing method : Before improvement Probing method : After
OutputCapacitor
Spike Noise : 35mV
Spike Noise: 10mV
www.torex.co.jp